In a secret society, a buried chamber can be accessed only via a secret password. The password is seven characters long and comprises of just letters and numbers.

You find a code that can help you in cracking the password. The code says "You force heaven to be empty".

Can you deduce the password from that?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you name an animal whose killing cannot be performed without spilling your own blood?

What is so fragile that saying its name breaks it?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

When we see 2 but call 10?

Three people are in a room. Ronni looks at the Nile. The Nile looks at Senthil. Ronni is married but Senthil is not married. At any point, is a married person looking at an unmarried person? Yes, No or Cannot be determined.

Replace the question mark with the correct number below.